We're noticing a new trend here at Inhabitat, and it's one we really like: vertical gardens on both the inside and outside of buildings. And why not? Maybe that's what <a href="http://www.verticalgardendesign.com/projects/replay-ii-exterior">Vertical Garden Design</a> told the folks at <a href="http://www.replay.it/en">Replay on Passeig de Gràcia in Barcelona</a> when they presented the idea to create both a storefront and courtyard green wall for the store. Not only do they look fantastic and produce life-sustaining oxygen, but lush <a href="http://inhabitat.com/the-semiahmoo-librarys-larger-than-life-living-wall-features-over-10000-plants/semiahmoo-green-wall-by-green-over-grey-13/">living walls full of waterfall plants</a> also evoke a wonderful sense of serenity.

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Replay Green Walls by Vertical Garden Design

Replay in Barcelona got a spruce up with not one but two new vertical gardens

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Replay Green Walls by Vertical Garden Design

Created by Vertical Garden Design, the two living walls are populated with different species of plants

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Replay Green Walls by Vertical Garden Design

Giving varying degrees of sun exposure

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Replay Green Walls by Vertical Garden Design

The two-storey storefront wall has begonias and ferns

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Replay Green Walls by Vertical Garden Design

While the courtyard wall - which sees a lot of sun on top and is shaded at the bottom - has hardier Mediterranean species

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Replay Green Walls by Vertical Garden Design

Not only do these vertical gardens look fantastic

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Replay Green Walls by Vertical Garden Design

But they also produce plenty of life-sustaining oxygen!

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Replay Green Walls by Vertical Garden Design

We're noticing a new trend here at Inhabitat, and it's one we really like: vertical gardens on both the inside and outside of buildings. And why not? Maybe that's what Vertical Garden Design told the folks at Replay on Passeig de Gràcia in Barcelona when they presented the idea to create both a storefront and courtyard green wall for the store. Not only do they look fantastic and produce life-sustaining oxygen, but lush living walls full of waterfall plants also evoke a wonderful sense of serenity.